题目内容
Jack described his father,who ________ a brave boy many years ago,as a strong-willed man.
| A.would be | B.would have been |
| C.must be | D.must have been |
D
根据语境可知,此处表示的是对过去事实的推测,所以用must have done结构。注意句中有一个非限制性定语从句将主句分隔开了。
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